I have a xfinity modem I rent as the one I'm saving for the netgear modem I want. Have the R8000 router as my primary and then. The X4s r7800 as a AP down the line my bandwidth on my R8000 hardwired is between 400-4500 Mbps down and 15-20 up and matching speeds on wifi. on the 7800 I'm barely getting 60-80 down when hard wired and about 70-80 pn wifi what could be causing this ? I did the most recent update on both devices and am running Cat6e cables through out the house when I connect it as a main it works fine.
There's no such thing as Cat6e. Anyway, have you checked the Ethernet cable between the R8000 and R7800? It could be damaged and operating at 100 Mbps.
